<!DOCTYPE html>
<body>
<script>
// This test passes if it does not crash.
// This does surprise the test runner by closing the main web contents.
var portal = document.createElement("portal");
portal.src = '/external/wpt/portals/resources/simple-portal.html';
document.body.appendChild(portal);
portal.onload = () => portal.activate();
</script>
</body>
